Traditional Culture Encyclopedia - Traditional stories - What does a dealer do? How to make money for them?

What does a dealer do? How to make money for them?

Hence the name "Silk Clothes": A dealer is a businessman who sells (manufactures) products.

Products have wholesale and retail prices, and dealers make profits in the middle!

For example, the wholesale price of a bottle of shampoo is 10 yuan, and the dealer can sell it to 15 yuan after getting it. He earns 5 yuan by selling a bottle, and the more he sells, the faster he makes money!

Please forgive me if I can't reach it!